ChemicalBook > CAS DataBase List > 9-BBN DIMER

9-BBN DIMER

CAS No.21205-91-4
Chemical Name:9-BBN DIMER
CBNumber:CB4155805
Molecular Formula:C16H30B2
Formula Weight:244.04
MOL File:21205-91-4.mol

9-BBN DIMER Property

Melting point 150-152 °C(lit.)
Boiling point 365.8±48.0 °C(Predicted)
storage temp. 2-8°C
solubility Soluble in tetrahydrofuran, ether, hexane, benzene, toluene, carbon tetrachloride, chloroform, dichloromethane and dimethylsulfide. Slightly soluble in cyclohexane, dimethoxyethane, diglyme and dioxane.
form crystalline
Sensitive Air & Moisture Sensitive
BRN 605509
Stability Hygroscopic, Moisture Sensitive
InChIKey IYDIZBOKVLHCQZ-GEEKYZPCSA-N
UNSPSC Code 12352005
NACRES NA.22

Safety

Hazard Codes :F,Xi
Risk Statements :11-14/15-36/37/38
Safety Statements :26-43
RIDADR :UN 3396 4.3/PG 2
WGK Germany :3
F :10-16
HazardClass :4.2
PackingGroup :I
HS Code :29349990

NFPA 704:

	2
1		0

Hazard and Precautionary Statements (GHS)

Symbol(GHS)
Signal wordDanger
Hazard statements H228-H261-H315-H319-H335
Precautionary statements P210-P231+P232-P261-P305+P351+P338-P422

9-BBN DIMER Price More Price(5)

Brand: Sigma-Aldrich(India)
Product number: 178713
Product name : 9-Borabicyclo[3.3.1]nonane dimer
Purity:
Packaging: 5G
Price: ₹6224.38
Updated: 2022/06/14
Buy: Buy

Brand: Sigma-Aldrich(India)
Product number: 178713
Product name : 9-Borabicyclo[3.3.1]nonane dimer
Purity:
Packaging: 25G
Price: ₹10023.95
Updated: 2022/06/14
Buy: Buy

Brand: Sigma-Aldrich(India)
Product number: 178713
Product name : 9-Borabicyclo[3.3.1]nonane dimer
Purity:
Packaging: 100G
Price: ₹35148.78
Updated: 2022/06/14
Buy: Buy

Brand: SRL
Product number: 36333
Product name : 9-BBN Triflate Solution (0.5M in hexanes) pure
Purity:
Packaging: 500mL
Price: ₹7810
Updated: 2022/05/26
Buy: Buy

Brand: SRL
Product number: 36333
Product name : 9-BBN Triflate Solution (0.5M in hexanes) pure
Purity:
Packaging: 1000ml
Price: ₹12750
Updated: 2022/05/26
Buy: Buy

9-BBN DIMER Chemical Properties,Usage,Production

Chemical Properties white crystals or crystalline powder
Uses Employed in the hydroboration of alkynes, nitriles, and ketones.
reaction suitability reagent type: reductant
Purification Methods It is available as the solid dimer or in tetrahydrofuran solution. The solid is relatively stable and can be purified by distillation in a vacuum (as dimer) and by recrystallisation from tetrahydrofuran (solubility at room temperature is 9.5%, 0.78M), filter off the solid under N2, wash it with dry pentane and dry it in vacuo at ca 100o. The solid is a dimer (IR 1567cm-1), stable in air (for ca 2 months), and can be heated for 24hours at 200o in an inert atmosphere without loss of hydride activity. It is a dimer in tetrahydrofuran solution also (IR 1567cm-1). It is sensitive to H2O and air (O2) in solution. Its concentration in solution can be determined by reaction with MeOH and measuring the volume of H2 liberated, or it can be oxidised to cis-cyclooctane-1,5-diol (m 73.5-74.5o). [IR: Knights & Brown J Am Chem Soc 90 5280 1968, Brown et al. J Am Chem Soc 96 7765 1974, Brown et al. J Org Chem 41 1778 1976, Brown & Chen J Org Chem 46 3978 1981, Fieser & Fieser Reagents for Org Synth 2 31, 3 24, 10 48, 15 43, 17, 49.] Borane pyridine complex [110 -51 -0] M 92.9, m 8-10o, 10-11o, b 86o/7mm, 100-1 0 1o/12mm, d 4 0.785. Dissolve it in Et2O and wash it with H2O in which it is insoluble. Evaporate the Et2O and distil the residual oil to gives better than 99.8% purity. Its vapour pressure is less than 0.1mm at room temperature. [Taylor et al. J Am Chem Soc 77 1506 1955, Beilstein 20 IV 2235.]